package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimall.product.vo.AttrVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;
import org.springframework.util.StringUtils;

@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Autowired
    AttrService attrService;

    @Autowired
    AttrAttrgroupRelationDao relationDao;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {

//        if(catelogId == 0){
//            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
//                    new QueryWrapper<AttrGroupEntity>());
//            return new PageUtils(page);
//        }else{
//            String key = (String)params.get("key");
//            QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>().eq("catelog_id",catelogId);
//            if(!StringUtils.isEmpty(key)){
//                wrapper.and((obj)->{
//                    obj.eq("attr_group_id",key).or().like("attr_group_name",key);
//
//                });
//            }
//            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
//                    wrapper);
//            return new PageUtils(page);
//        }
        String key = (String) params.get("key");
        //select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });
        }

        if( catelogId == 0){
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }else {
            wrapper.eq("catelog_id",catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    wrapper);
            return new PageUtils(page);
        }



    }

    @Override
    public void deleteRelation(AttrGroupRelationVo[] vos) {
        List<AttrAttrgroupRelationEntity> list = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());

        relationDao.deleteBatchRelation(list);
    }

    /**
     * @Author:孙维
     * @Description://根据分类Id查出所有的分组以及这些组里面所有属性
     * @Date: 2021/10/28 14:57
     * @Param:[catelogId]
     * @return:java.util.List<com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo>
     **/
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1.查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(item -> {
            AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(item, attrGroupWithAttrsVo);
            List<AttrEntity> attrRelation = attrService.getAttrRelation(attrGroupWithAttrsVo.getAttrGroupId());
            attrGroupWithAttrsVo.setAttrs(attrRelation);
            return attrGroupWithAttrsVo;

        }).collect(Collectors.toList());
        return  collect;
    }

}